FEATURES:

Special generators for Resources, Models, Views and Controllers that
generate RSpec code examples.

VISION:

For people for whom TDD is a brand new concept, the testing support built
into Ruby on Rails is a huge leap forward. The fact that it is built right
in is fantastic, and Ruby on Rails apps are generally much easier to
maintain than they might have been without such support.

For those of us coming from a history with TDD, and now BDD, the existing
support presents some problems related to dependencies across examples. To
that end, RSpec on Rails supports 4 types of examples. We’ve also built in
first class mocking and stubbing support in order to break dependencies
across these different concerns.

MORE INFORMATION:

See Spec::Rails::Example for information about the different kinds of
example groups you can use to spec the different Rails components

See Spec::Rails::Matchers for information about Rails-specific expectations
you can set on responses and models, etc.